The reaction of Koo may be more accurately described as being to globalization and the cultural homogenization it entails than against the largely western right/left divide.

The diversity of opinions on mainstream platforms is starting to resemble being in an airport where you have the choice of mcdonald's, wendy's, burger king, or taco bell if you are looking for something exotic. Sure, it appeals to everyone, except it appeals to their vices and when they don't have better choices. As soon as people can afford better, they switch. From an economics perspective, the mainstream US platforms are an "inferior good." The last 10 years of social media has been a real time spectacle of intellectual mean reversion.

I'm cheering Koo on anyway. They're going after the regional desires of hundreds of millions of people who have a country in common. The bar to creating services like this is really low, and there are so many other huge countries to serve.